CVE-2022-35637Network attack vector

Service interruption via malformed db2expln SQL

Published Sep 13, 2022 · Updated Sep 16, 2024

Denial of service in IBM Db2 10.5, 11.1, and 11.5 allows remote authenticated users to interrupt service through db2expln. The db2expln utility accepts a specially crafted malformed SQL statement, but IBM has not disclosed the faulty operation performed on it. A valid low-privilege Db2 context is required, and the documented consequence is limited to service availability.

CVSS severity6.5
Medium
EPSS probability1.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IBM Db2 10.5, 11.1, and 11.5 allows remote authenticated users to interrupt service through db2expln. The db2expln utility accepts a specially crafted malformed SQL statement, but IBM has not disclosed the faulty operation performed on it. A valid low-privilege Db2 context is required, and the documented consequence is limited to service availability.

The record

CVE
CVE-2022-35637
Published
Sep 13, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Db2 for Linux, UNIX, and Windows
Classifications
T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.5
  2. Affected versionversion=11.1
  3. Affected versionversion=11.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Db2 for Linux, UNIX, and Windowsversion=10.5; version=11.1; version=11.5

Published CVSS scores

6.5IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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